private bool TryReadUnsignedNumber(
bool negate,
out object result,
IntegerReader tryReadNum,
FloatReader tryReadFrac,
char exponentChar,
int exponent)
{
BigInteger num;
if (tryReadNum(out num))
{
if (Expect('.'))
{
FloatLiteral frac;
if (!tryReadFrac(out frac))
{
frac = FloatLiteral.Zero(exponent);
}
var floatNum = num + frac;
if (Expect(exponentChar) || Expect(char.ToUpperInvariant(exponentChar)))
{
floatNum = floatNum.ChangeBase(exponent);
if (!TryAppendExponent(floatNum, out floatNum))
{
result = null;
return(false);
}
}
result = MaybeNegate(floatNum, negate);
}
else if (Expect(exponentChar) || Expect(char.ToUpperInvariant(exponentChar)))
{
FloatLiteral floatNum;
if (!TryAppendExponent(FloatLiteral.Number(num, exponent), out floatNum))
{
result = null;
return(false);
}
result = MaybeNegate(floatNum, negate);
}
else
{
result = MaybeNegate(num, negate);
}
return(true);
}
else
{
result = null;
return(false);
}
}
private DataObserver readValue3(DataObserver oldDataObs)
{
DataObserver dObs = oldDataObs;
string completeVariable = oldDataObs.PathName;
int importOk = vc.importVariable(completeVariable);
int typeVS = -1;
long oldTimeStamp = oldDataObs.Timestamp;
long timeStamp = 0;
string value = "";
vc.getType(completeVariable, out typeVS);
if (importOk != 0 /*&& !oldDataObs.IsChanging*/)
{
//vc.waitForConnection(completeVariable,500);
switch (typeVS)
{
///=================================================================================================
/// Si le type est égal à 1 alors c'est un entier
///=================================================================================================
case 1:
dObs.Type = VS_Type.INTEGER;
IntegerReader intr = vc.createIntegerReader(completeVariable);
int valVarInt;
if (intr != null)
{
intr.setBlocking(1 * 20);
//intr.waitForEventConnection();
VariableState t = intr.waitForFirstValue();
if (t == VariableState.Ok)
{
intr.get(out valVarInt, out timeStamp);
value = valVarInt.ToString();
}
}
break;
///=================================================================================================
///=================================================================================================
/// Si le type est égal à 2 alors c'est un double
///=================================================================================================
case 2:
dObs.Type = VS_Type.DOUBLE;
DoubleReader dblr = vc.createDoubleReader(completeVariable);
double valVarDbl;
if (dblr != null)
{
dblr.setBlocking(1 * 20);
//dblr.waitForEventConnection();
VariableState t = dblr.waitForFirstValue();
if (t == VariableState.Ok)
{
dblr.get(out valVarDbl, out timeStamp);
value = valVarDbl.ToString();
}
}
break;
///=================================================================================================
case 3:
break;
///=================================================================================================
/// Si le type est égal à 4 alors c'est un Vector Integer (Tableau d'entier)
///=================================================================================================
/*
* case 4:
* dObs.Type = VS_Type.VECTOR_INTEGER;
* VectorIntegerReader vecIntReader = vc.createVectorIntegerReader(completeVariable);
* IntegerVector valVarVecInt = new IntegerVector();
*
* if (vecIntReader != null)
* {
* vecIntReader.setBlocking(1 * 200);
* VariableState t = vecIntReader.waitForConnection();
*
* if (t == VariableState.Ok)
* {
* vecIntReader.get(valVarVecInt, out timeStamp);
* value = tableToString(valVarVecInt);
* }
* }
* break;
*/
///=================================================================================================
default:
dObs.Type = VS_Type.INVALID;
value = "Undefined";
break;
}
if (!oldDataObs.Value.Equals(value))
{
dObs.Value = value;
dObs.ValueHasChanged = true;
}
else
{
dObs.ValueHasChanged = false;
}
dObs.Timestamp = timeStamp;
//dObs.WhenUpdated = howManyTime(oldTimeStamp, dObs.Timestamp);
dObs.WhenUpdated = createDateTime(dObs.Timestamp);
}
displayValues(dObs);
return(dObs);
}
public void Test_IntegerReader()
{
const string raw = "0 5 +5000 -12345 -0 not_number";
var stream = new MemoryStream(Encoding.ASCII.GetBytes(raw));
var reader = new IntegerReader(stream, null);
var obj = reader.Read();
Assert.IsNotNull(obj);
Assert.AreEqual(0, obj.Value);
obj = reader.Read();
Assert.IsNotNull(obj);
Assert.AreEqual(5, obj.Value);
obj = reader.Read();
Assert.IsNotNull(obj);
Assert.AreEqual(5000, obj.Value);
obj = reader.Read();
Assert.IsNotNull(obj);
Assert.AreEqual(-12345, obj.Value);
obj = reader.Read();
Assert.IsNotNull(obj);
Assert.AreEqual(0, obj.Value);
obj = reader.Read();
Assert.IsNull(obj);
stream.Dispose();
}
